INDEX. 



585 



NICOTIAN A. 



Nicotiana glauca, sleep of leaves, 

 385, 380' 



, circumnutation of leaves, 



886 



Nobbe, on the rupture of the seed- 

 cuats in a seedling of Martynia, 

 105 



Nolana prostrata, movement of seed- 

 lings in the dark, 50 



, tircunmutution of seedling, 



108 



Nycti tropic movement of leaves, 

 500 



Nyctitropism, or sloop of leaves, 

 281 ; in connection with radia- 

 tion, 286; object gained by it, 



0. 



Observati n, methods of, 6 



(Enothera rnollifsima, sleep of leaves, 

 383 



Opuntia basilar/s, conjoint circum- 

 nutation of hypocotyl and coty- 

 ledon, 44 



, thickening of the hypocotyl, 



96 



, circumnutation of hypocotyl 



when, erect, J07 



, burying of, 109 



Orange, seedling, circumuutation 

 of, 510 



Orchis pyramidalis, complex move- 

 ment of pollinia, 489 



Oxalis acetosella, circumnutation of 

 flower-stem, 224 



, effects of exposure to radia- 

 tion at night, 287, 288, 296 



, circumnutation and nycti- 



tropic movement in full-grown 

 leaf, 326 



, circumnutation of leaflet when 



asleep, 327 



. rate of circumnutation of 



leaflets, 404 



, effect of sunshine on leaflets, 



417 



, circumnutation of peduncle, 



506 



OXALIS. 



Oxalis acetosella, seed-capsules, only 

 occasionally buried, f>18 



- articulala, nocturnal move- 

 ments of cotyledons, 807 



{Biopliytum} semdiva, ra- 

 pidity of movement of cotyledons 

 during the day, 26 



, pulvinus of, 113 



, cotyledons vertical at night, 



116, 118 



bupleurifolia, circumnutation 



of foliaceous petiole, 328 



, nyctitropic movement of ter- 

 minal leaflet, 329 



carnosa, circumnutation of 



flower-stem, 223 



, epinastic movements of flower- 

 stem, 504 



, effect of exposure at night, 



288, 296 



, movements of the flower-pe- 

 duncles due to apogtotropism 

 and other forces, 503-506 



corniculata (var. cuprea}, 



movements of cotyledons, 26 



, rising of cotyledons, 116 



, rudimentary pulvini of coty- 

 ledons, 119 



, development of pulvinus, 



122 



, effect of dull light, 124 



, experiments on leaves at night, 



288 



floribunda, pulvinus of coty- 

 ledons, 114 



. nocturnal movement, 118, 



307, 313 



fragrans, sleep of leaver, 



324 



Ortegesii, circumnutation of 



flower stems, 224 



, sleep of large leaves, 327 



, diameter of plant at night, 



402 



, large leaflets affected by bright 



sunshine, 4-17 



Plumierii, sleep of leaves, 327 



purpurea, exposure of leaflets 



at night, 293 



rosea, circumnutation of coty- 

 ledons, 23, 24 



